The Flanders Model C Series C75-12242 Honeycomb Carbon Panel Gas Phase Odor Control Filter is a partial-bypass odor control filter constructed with a cellulose honeycomb lamination. Each individual cell is 75% filled with granular activated carbon and made from non-woven nylon mesh. Odor producing gases become trapped in the carbon pores. The C75-12242 works well in residential and commercial applications with minor odor problems, typically being installed in bathrooms, cooking, smoking, or entertaining areas. The effectiveness of the odor control varies based on the type of odor or vapor removed.